Symptoms - Body Rear End for Buick Century 2005

Important: The following steps must be completed before using the symptom tables.

•	Perform the Diagnostic System Check - Vehicle in Vehicle DTC Information before using the Symptom Tables in order to verify that all of the following are true:

-	There are no DTCs set.

-	The control modules can communicate via the serial data link.

•	Review the system description and operation in order to familiarize yourself with the system.

•	Inspect for aftermarket devices which could affect the operation of the body rear end. Refer to Checking Aftermarket Accessories in Wiring Systems.

•	Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

•	Trunk Release Inoperative

•	Trunk Ajar Indicator Always On

•	Trunk Ajar Indicator Inoperative